Example of extrusive/volcanic rock is

Solution (By Examveda Team)

Ingenious rocks which are formed on the surface of the Earth by the crystallization of magma are called Extrusive rocks. These are fine-grained textures because their rapid cooling at or near the surface did not provide enough time for large crystals to grow.
Some examples of extrusive rocks are Basalt, Rhyolite and Andesite.